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Discussion in 'A3/S3 Forum (8L Chassis)' started by 1mran, May 28, 2007.
Hi does anyone know what fuel pressure regulator is on an audi s3. is it 3 bar or 4 bar.
Pretty sure it's 3bar, i think a 4bar one people put on as an upgrade. HTH
thanks for the replies would there be any performance gains on adding a 4bar over the standard 3bar then. just curious thats all
I asked the question when I got mine remaped at JBS. They said unless you have a big turbo it would be a waste of time.
originally it is a 3 bar. some tuners want you to switch to 4 bar with a remap (like Revo), but most others stay with the 3. BT usually get the 4 bar.
on its own a 4 bar FPR would do nothing for performance.